Found 2 items, similar to decennium.
English → English (WordNet) Definition: decennium decennium n : a period of 10 years [syn: decade, decennary] [also: decennia (pl)]
English → English (gcide) Definition: Decennium Decennium \De*cen"ni*um\, n.; pl. Decenniums, L. Decennia. [L.] A period of ten years. “The present decennium.” --Hallam. “The last decennium of Chaucer's life.” --A. W. Ward.